Home / 1,285,728.01-1,928,296.87-766,550.13

Finding the Fourth Proportional to 1,285,728.01, 1,928,296.87 and 766,550.13

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Solution

The fourth proportional to 1,285,728.01, 1,928,296.87 and 766,550.13 is: 1,149,649.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,728.01 : 1,928,296.87 = 766,550.13 : x
  2. Step 2: Convert to fraction form
    1,285,728.01/1,928,296.87 = 766,550.13/x
  3. Step 3: Cross multiply
    1,285,728.01x = 1,928,296.87 × 766,550.13
  4. Step 4: Simplify right side
    1,285,728.01x = 1,478,136,211,541.45
  5. Step 5: Solve for x
    x = 1,478,136,211,541.45/1,285,728.01
  6. Step 6: Final answer
    x = 1,149,649.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.